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Abstract
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Article Information:
Understanding Solute Transport in a Solid Waste Fill Using Basic Principles of Soil Mechanics and Stochastic Modelling
Olayiwola Ademola G. Oni
Corresponding Author: Olayiwola Oni
Submitted: 2010 March, 25
Accepted: 2010 June, 26
Published: 2010 July, 10 |
Abstract:
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The solute transport owing to contaminant constituents in an emplaced solid waste was studied in
saturated and oversaturated conditions using Sodium Chloride as the tracer. The flow was analysed using
physical and probabilistic models commonly used in soil investigations. The Breakthrough Curves (BTCs)
indicate relatively fast solute particles flowing vertically within the mass water flow in the w aste fill. Unlike
in previous studies, the transport of solutes from the inlet to the outlet has been undertaken using a transfer
model, which is a function of volumetric water input. Although the simulated average fractional volume of
water involved in the transport of solute particles appears to be slightly overestimated, the study indicates that
virtually the entire water content of the saturated waste fill appears to be actively involved in solute transport
within the waste mass. The disparity in the modelled and practicable values of the fractional flux in the
saturated waste fill indicates that some of the solute particles are irreversibly adsorbed within the waste mass.
The study further indicates solute flow along the cell wall in the oversaturated condition, and in general, shows
the applicability of soil models to waste flows.
Key words: Inflow, leachate, saturation, solute transport, tracer test, transfer function,
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Abstract
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Cite this Reference:
Olayiwola Ademola G. Oni, . Understanding Solute Transport in a Solid Waste Fill Using Basic Principles of Soil Mechanics and Stochastic Modelling. Research Journal of Applied Sciences, Engineering and Technology, (4): Page No: 348-355.
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ISSN (Online): 2040-7467
ISSN (Print): 2040-7459 |
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